Digital forensics is a branch of forensic science encompassing the recovery and investigation of material found in digital devices, often in relation to computer crime. A Pilot study on methodology and complexity of digital forensics and how digital forensics can be applied in a live environment without the loss or spoilage of valuable data and evidence.

2.  justify why use of the digital forensic methodology and approach
is warranted including procedures for corporate
investigation.(Apply with the case study)
 describe the resources required to conduct a digital forensic
investigation, including team member skill sets and required
tools. .(Apply with the case study)
 outline an approach for data/evidence identification and
acquisition that would occur in order to prepare the auditors for
review of the digital evidence. .(Apply with the case study)
 outline an approach and steps to be taken during the analysis
phase making the assumption the computer system is a
Microsoft Windows-based computer. .(Apply with the case study)
 create a table of contents for the investigative plan describing
what the primary focus of the report would be. .(Apply with the
case study)
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3.  Global finance company has 10000 employees.
 It has introduced network communication and
computerization in all its branches
 A fear of security was raised by one of the managers
 Digital forensic audit was performed to look into the security
issues
 The investigation was conducted on the MS word, Outlook,
and other deleted files in the manager’s computer
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4. ◦ The data from the target computer should not be modified but kept for
reference
◦ The audit team must have high skill and expertise
◦ The relevant documentation and trial conducted by the audit team must
be preserved
◦ Information Security Officer is solely responsible for the security.
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5. ◦ Recognize the security systems that has lapsed.
◦ Recognize all the digital evidence
◦ All the malicious activities are recognized with 5W’s
◦ Recognize the legal procedure
◦ To analyze and find the impact on the branch
◦ Submit the final report to the head
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6. ◦ Collection
◦ Examination
◦ Analysis
◦ Report
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7.  It is basically the acquisition of data
 Recording and labeling the data of the
computers in the Queensland branches
 Two ways of collecting data:
◦ Volatile
◦ Non-volatile
 Data is also collected from other sources like
offline and online.
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8.  The computer of the manager that is targeted computer can be accessed via.
LAN connection.
 A tool collection that is trusted and can be recorded and used through
cmd.exe file.
 The commands needed are:
Cryptcat <id address> 6543 – k key
Cryptcat -1 –p 6543 –k key >> <filename>
 Windows based tools that are to be used on the Windows based systems are,
o HBGray’s fastDump to obtain the local physical memory
o HBGray’s F-Response to obtain remote physical memory
o Ipconfig is used for the collection of subject system details
o Netusers and qusers can identify logged in user information
o Doskey or history for collecting command history
o Netfile is used to identify the services and drivers
 Data is acquired from Ram, registry and cache memory, network, etc
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9.  This kind of data is present in the permanent storage of the computing
device.
 Copying this type of data for the local office is known as forensic
imaging
 Data is collected from storage devices like hard disk, CD, DVD, etc.
 The data should be preserved without any modifications or alteration.
 The process of forensic imaging can be done using tools like, EnCase,
ProDiscover and FTK.
 The data is imitated as the ROM or read only memory by the team
performing audit.
 The audit team use write blocker.
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10.  File system assessment : NTFS contains MFT that has information of
the files and disc in the OS. To get the file c:more <file1.txt:file2.txt
is used.
 Windows registry assessment: The window registry structure is
HKEY_CLASSES_ROOT
HKEY_USERS
HKEY_CURRENT_USER
HKEY_CURRENT_CONFIG
HKEY_LOCAL_MACHINE
Information's present here are- user activity, MRU, auto start
 Database forensic assessment: Here, DDL, DML transactions in the
database is assessed
 Network forensic assessment: The browsing data, mails, IP address
are assessed.
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11.  Gather the hidden or odd files
 Unusual accounts
 For strangely opened sockets
 Abnormal application requirements
 Malicious activities
 Total memory investigation
 Total file systems investigation
 Malware analysis
 Total timeline analysis
 Total event correlation investigation
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12. ◦ The computer is identified via. remote access by the attacker
◦ Os patches
◦ The source of compromise
◦ The suspected malware
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13.  The audit team finally prepares the report after the
through investigation
◦ Point of the report: It is submitted so that detail of the
investigation can be known to the authorized personnel
◦ Author of the report: Information security officer.
◦ Incident summary: The foundation of the conciliation
explored from the computer of the manager and is caused
due to x1, x2 and x3 reasons
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14. ◦ Evidence: All the important digital evidence and log file
tracked in the analysis
◦ Analysis: Investigation of the unlawful sources,
completed from the sources x, y and z
◦ Conclusion: The computer of the manager and other
computing devices in the local office are systematically
investigated and lastly the sources are found where
they found any sign of compromise
◦ Supporting documents: These documents involve non-
volatile and volatile information
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15.  All the devices in the local as well as the manager’s
computer was investigated properly
 Examination was done to see unauthorized and
authorized sources
 The compromise’s source explored and found
 The report is submitted to the Information security
officer.
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16.  Kenneth J. Zahn (2013), “Case Study: 2012 DC3 Digital Forensic Challenge Basic Malware
Analysis Exercise”, GIAC (FREM) Gold Certification
 John Ashcroft (2001), “Electronic Crime Scene Investigation, A guide for First
Responders”, NIJ Guide
 M Reith, C Carr, G Gunsch (2002). "An examination of digital forensic models".
International Journal of Digital Evidence
 Richard Brian Adams (2012), “The Advanced Data Acquisition Model (ADAM): A Process
Model for Digital Forensic Practice”
 Agarwal, A., Gupta, M., Gupta, S., & Gupta, S. C. (2011). “Systematic Digital Forensic
Investigation Model”, International Journal of Computer Science and Security, 5(1), 118-
130.
 Armstrong, C. (2003), “Mastering Computer Forensics. In C. Irvine & H. Armstrong”,
Security Education and Critical Infrastructures Kluwer Academic Publishers.
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